one step · no API keys to paste

Connect to MCP

OneCheckout ships as a hosted MCP server for Mac. Just ask your agent or coding environment to install it. It handles its own onboarding, vaulting, and checkout from there.

Are you an agent?

Skip the UI and read the raw setup and tool list at /connect.md

What is an MCP?

An MCP (Model Context Protocol server) is a plug-in that an AI agent installs to gain new tools and capabilities. The OneCheckout MCP is the plug-in your agent installs and uses to make online purchases.

step 1 · tell your agent

step 2 · or paste the endpoint directly

or add in one click

Read the docsFull tool reference, the agent playbook, and integration guides.

Want to talk to a human first?

Reach the OneCheckout & OneText team, or book time with the founders.

example · Claude Code

What it looks like in your terminal

claude code · ~/agent

> Fetch https://onecheckout.ai/connect.md and follow the instructions it returns to install and set up the OneCheckout MCP. Then give me a tour of what I can do!

⏺ Adding MCP server onecheckout…

↳ discovered transport: streamable-http

↳ handshake ok · 7 tools registered

✓ Connected to OneCheckout MCP

Tools now available: vault_card, onboard_buyer, quote_route, checkout, create_subscription, list_methods, get_receipt

> Buy 2 of TS-01 from shop.example.com

⏺ onecheckout · checkout()

↳ routing → visa_intelligent_commerce · 42 bps

✓ Order placed · settled in 1.2s

works everywhere MCP does

Works with Your Agent

The same endpoint connects from any MCP-capable agent or coding environment. No per-client configuration.

Claude CodeCLI
CodexCLI
Claude Desktopapp
Claude Coworkworkspace
Hermesagent runtime
Any MCP-friendly agentspec-compliant

documentation

Everything your agent needs to transact

Tool schemas, the agent hard-rules, routing behavior, and step-by-step integration guides, plus the full FAQ.

Read the docs